There are total 18 hours or 1080 minutes from 7am to 1am. In words, this duration is equal to eighteen hours or one thousand eighty minutes.
How many hours from
| 5AM to 6PM | 6PM to 3AM | 10PM to 5PM |
| 11PM to 2AM | 1AM to 6AM | 10AM to 3AM |
| 5AM to 5PM | 10PM to 2AM | 1PM to 8PM |
| 12AM to 8AM | 6AM to 9AM | 7PM to 9PM |
| 7AM to 2PM | 10PM to 8AM | 2PM to 6AM |
| 11AM to 11PM | 5AM to 7AM | 7AM to 2AM |
